发明名称 |
APPARATUS FOR ADJUSTING IMAGE QUALITY OF AUDIO/VIDEO SYSTEM |
摘要 |
PURPOSE: An apparatus for adjusting an image quality improves an image quality by accentuating a luminance signal thereby obtaining a desired screen by selecting the luminance signal. CONSTITUTION: An apparatus comprises a first limiter(10) for limiting a level of an inputted luminance signal in a predetermined band, a luminance signal differentiater(20) for differentiating the luminance signal through the first limiter, a second limiter(30) for limiting a level of a luminance signal outputted from the luminance signal differentiater in a predetermined band, a low band filter(40) for low-band filtering the inputted luminance signal, and a luminance signal amplifing unit(50) for mixing the luminance signal obtained from the low band filter and a differential luminance signal obtained from the second limiter, and amplifying the mixed signal in a desired level, to output an accentuated signal. The luminance signal is adjusted to have a same frequency.
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申请公布号 |
KR20000073121(A) |
申请公布日期 |
2000.12.05 |
申请号 |
KR19990016195 |
申请日期 |
1999.05.06 |
申请人 |
HYUNDAI AUTONET CO., LTD. |
发明人 |
OH, GWON TAEK;LEE, SANG EOP |
分类号 |
H04N5/57;(IPC1-7):H04N5/57 |
主分类号 |
H04N5/57 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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